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Finding the Fourth Proportional to 196,613, 294,844.50 and 70,229.72

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Solution

The fourth proportional to 196,613, 294,844.50 and 70,229.72 is: 105,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,613 : 294,844.50 = 70,229.72 : x
  2. Step 2: Convert to fraction form
    196,613/294,844.50 = 70,229.72/x
  3. Step 3: Cross multiply
    196,613x = 294,844.50 × 70,229.72
  4. Step 4: Simplify right side
    196,613x = 20,706,846,678.54
  5. Step 5: Solve for x
    x = 20,706,846,678.54/196,613
  6. Step 6: Final answer
    x = 105,317.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.